In general, speaking before a group or talking on the telephone may make a personâs stuttering more severe, while singing, reading, or speaking in unison may temporarily reduce stuttering. Stuttering is sometimes referred to as stammering and by a broader term, disfluent speech. Who stutters? Roughly 3 million Americans stutter. Stuttering affects people of all ages. It occurs most often in children between the ages of 2 and 6 as they are developing their language skills. Approximately 5 to 10 percent of all children will stutter for some period in their life, lasting from a few weeks to several years.
A coordinate bond (also called a dative covalent bond) is a covalent bond (a shared pair of electrons) in which both electrons come from the same atom. A covalent bond is formed by two atoms sharing a pair of electrons. The atoms are held together because the electron pair is attracted by both of the nuclei.
Therefore a Carbon atom can instead share each of its electrons with four separate Hydrogen atoms. This completes the valence shells for four Hydrogen atoms and one Carbon atom. In this example, one pair of electrons is shared between two atoms. The covalent bonds shown below are all called single covalent bonds. As one might surmise, there are a variety of ways of arranging electrons in covalent bonds.